A solution of aluminium chloride is electrolysed for 30 minutes using a current of 2A. The amount of the aluminium deposited at the cathode is ___ .[Given : molar mass of aluminium and chlorine are 27 g mol^–1 and 35.5 g mol^–1 respectively, Faraday constant = 96500 C mol^–1].

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1.660 g

1.007 g

0.441 g

0.336 g

answer is C.

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Detailed Solution

$\begin{array}{l} gm equivalent of Al deposited = \frac{It}{96500} \\ \frac{w}{27} \times 3 = \frac{2 \times 30 \times 60}{96500} \\ w = 0.336 g \end{array}$

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